Microwave-hydrothermal synthesis of γ-Fe2O3 nanoparticles and their magnetic properties

被引：137
作者：
Sreeja, V. [1 ]
Joy, P. A. [1 ]
机构：
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
来源：
MATERIALS RESEARCH BULLETIN | 2007年 / 42卷 / 08期
关键词：
A. magnetic materials; A; nanostructures; oxides; B. chemical synthesis; D. magnetic properties;
D O I：
10.1016/j.materresbull.2006.11.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanosized gamma-Fe2O3 is synthesized by the microwave-hydrothermal method. Powder X-ray diffraction and transmission electron microscopic studies showed that the average particle size is 10 nm. Magnetic studies reveal that the gamma-Fe2O3 nanoparticles are superparamagnetic at room temperature, with a superparamagnetic blocking temperature of 200 K. The magnetic characteristics of the nanoparticles indicate their strongly interacting nature. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1570 / 1576
页数：7
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